Mazda Mazda6 Workshop Manual Supplement page 585

Diagnostic procedure
STEP
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
2 INSPECT TERMINAL COMPONENT NO.1 (12-
PIN) FOR POOR CONNECTION
• Turn ignition key to OFF.
• Disconnect terminal component No.1 (12-pin).
• Check for poor connection (damaged, pulled-
out, terminals, corrosion, etc.).
• Are terminals okay?
3 INSPECT RESISTANCE
• Check resistance between terminal component
No.1 (12-pin) terminal A (transaxle case side)
and body ground.
• Is resistance within 2.6—3.2 ohms?
(See K2–88 SOLENOID VALVE
4 INSPECT COUPLER COMPONENT (10-PIN)
FOR POOR CONNECTION
• Disconnect coupler component (10-pin)
connector.
• Check for poor connection (damaged, pulled-
out, terminals, corrosion, etc.).
• Is terminal okay?
5 INSPECT RESISTANCE
• Check resistance between coupler component
(10-pin) terminal D (part side) and body
ground.
• Is resistance within 2.6—3.2 ohms?
(See K2–88 SOLENOID VALVE
6 INSPECT 2-4 BRAKE SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
• Disconnect 2-4 brake solenoid vale connector.
• Check for poor connection (damaged, pulled-
out, terminals, corrosion, etc.).
• Is terminal okay?
7 INSPECT RESISTANCE
• Check resistance between 2-4 brake solenoid
valve connector terminal A (part side) and body
ground.
• Is resistance within 2.6—3.2 ohms?
(See K2–88 SOLENOID VALVE
8 INSPECT TCM CONNECTOR FOR POOR
CONNECTION
• Disconnect TCM connector.
• Check for poor connection (damaged, pulled-
out, terminals, corrosion, etc.).
• Are terminals okay?
9 INSPECT TERMINAL COMPONENT NO.1 (12-
PIN) CIRCUIT FOR OPEN CIRCUIT
• Check continuity between TCM terminal 2V
(harness-side) and terminal component No.1
(12-pin) terminal A (harness-side).
• Is there continuity between terminals?
10 INSPECT TERMINAL COMPONENT NO.1 (12-
PIN) CIRCUIT FOR SHORT TO POWER
• Turn ignition key to ON (engine OFF).
• Check voltage at terminal component No.1 (12-
pin) terminal A (harness-side).
• Is voltage 0 V?
K2–170
ON-BOARD DIAGNOSTIC
INSPECTION
INSPECTION.)
INSPECTION.)
INSPECTION.)
Yes Perform repair or diagnosis according to available repair
information.
• If vehicle is not repaired, go to next step.
No Go to next step.
Yes Go to next step.
No Repair or replace terminals, then go to Step 12.
Yes Go to Step 8.
No Go to next step.
Yes Go to next step.
No Repair or replace terminal, then go to Step 12.
Yes Repair or replace terminal component No.1 (12-pin), then
go to Step 12.
No Go to next step.
Yes Go to next step.
No Repair or replace terminal, then go to Step 12.
Yes Repair or replace coupler component (10-pin), then go to
Step 12.
No Verify 2-4 brake solenoid valve installation.
• If 2-4 brake solenoid valve is installed correctly, replace
2-4 brake solenoid valve, then go to Step 12
(See K2–90 SOLENOID VALVE REMOVAL/
INSTALLATION.)
Yes Go to next step.
No Repair terminals, then go to Step 12.
Yes Go to next step.
No Repair or replace harness, then go to Step 12.
Yes Go to next step.
No Repair or replace harness, then go to Step 12.
ACTION